ACL Race tri-metal big end bearings, lugged, Audi 2.5 TFSI CEPA CEPB CZGB DAZA DNWA

The tri-metal big end bearing sets ACL RACE for VAG 2.5 TFSI EA855 engines consist of 10 bearing shells.

Below (click on the image) you will find the tri-metal main bearings for the 2.5 TFSI EA855 engine and the plastigage strips used to check the bearing to crankshaft running clearance:

CEPA, CEPB	CZGB, DAZA, DNWA

Technical specification

• Crankshaft big end journal diameter (min/max): 47.758 / 47.778mm
• Connecting rod bearing bore (min/max): 50.600 / 50.619mm
• Max thickness: 1.405mm
• Sizes: standard, standard with HX clearance, +0.025, +0.25mm or +0.50mm
• Anti-friction coating: none
• Lugged bearings: NOT COMPATIBLE WITH STANDARD CONNECTING RODS
• References: 5B1606, 5B1606H-STD, 5B1606HX-STD, 5B1606H-.025, 5B1606H-.25, 5B1606H-.50

ACL Race Series tri-metal bearings are manufactured to tight tolerances. CNC machining works to the micron, before metrological inspection of the diameters, the thickness and the width of the ACL Race Series tri-metal shell. ACL Race Series bearings therefore give a reliable and consistent fit in your performance engine. ACL Race Series tri-metal bearings are in fact built up from 4 layers:

• SAE1010 steel on the outside
• 0.3mm copper alloy
• 0.0001mm nickel
• 0.013 to 0.018mm copper alloy

This choice of materials, together with the manufacturing process, makes ACL Race Series tri-metal bearings more resistant to increases in power, torque and engine speed. The compressive strength of ACL Race Series tri-metal bearings brings reliability to your engine even on heavily boosted turbo or supercharged builds, or on high revving race engines.